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Statements of Changes in Redeemable Preferred Stock and Stockholders’ Equity (Deficit) (Parentheticals) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Statement of Stockholders' Equity [Abstract]
Net of offering costs	$ 2,750,601

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- Definition

Net of offering costs.

+ References

No definition available.

+ Details

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Namespace Prefix:	bjdx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- References

No definition available.

+ Details

Name:	us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration